Electric lighter and extinguisher for gas-burners.



PATENTED JAN. 30, 1906.

0. & c. UANDI. ELECTRIC LIGHTER AND BXTINGUISHER FOR GAS BURNERS.

APPLICATION I I TUNTFU @TrtTFd earner enrich.

ELECTRlC LIIGHTIER AND EXTINGUIISHEH IFOFl GAS BUFlNERS.

Specification of Letters Patent.

Patented Jan. 30, 1906- Application filed November 17, 1904. Serial No. 233,174.

To (ti/Z whom, it may concern:

Be it known that we, Onns'rn OANDI and CESAR OANDI, mechanicians, subjects of the King of Italy, residing at Genoa, Italy, have invented a new and useful Electric Igniter and Extinguisher for Gas-Burners; and we do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to means for electrically turning the cocks of gas-burners to allow the gas to flow or to shut off said flow and also to ignite the gas; and it consists of the features and construction and combination of parts hereinafter referred to, and particularly pointed out in the claims.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is an elevation of the invention gpplied to a burner. Fig. 2 is a view like 'g. 1 with parts omitted and parts shown in dotted lines. Fig. 3 is a side view. Fig. 4 is a plan view of the armature. Fig. 5 is a vertical sectional view of the part of the burner carrying the cock. Fig. 6 is a like view of a modification. Fig. 7 is a plan view of the electromagnet.

The apparatus forming the subject of the present invention consists of an electromagnot a of nearly cylindrical form, as shown in Figs. 1, 3, and 7. Passing through the center line of said electromagnet is a tube 6 for the passage of lighting gas or the like, the ends of which are screw-threaded for the purpose of fastening the burner and attaching the device to a chandelier or the like. The armature of the electromagnet, Figs. 1, 2, 3, and 4, consists of a disk plate 0, having a central oblon aperture cl to permit of the movements of t e same, and said plate a is hinged at e on a post f, secured to the side of the magnet. Secured to the under side of the disk plate a is an angle-piece g, to which is attached a small arm h, Figs. 1, 2, 3, of yielding material, provided at its free end with a lug 7c, so that when the armature is influenced by the electromagnet the lug 7c is moved down wardly and when the electric circuit is broken the armature is again raised by the action of a spring Z, Fig. 2, secured inside the electromagnet and acting upon the arm m, arranged under the armature.

The cock a of the burner carries externally a small wheel 0, provided with twelve peripherical ratchet-teeth, with which cooperates the lower edge of the lug 7c, beveled for the purpose. The lug It being in contact with one of the ratchet-teeth of the wheel 0 and the armature being influenced by the electromagnet energized upon the passage of a current, the downward movement of the lug It causes the wheel 0 to rotate about a quarter of a circle, whereby the cock is opened for the admission of gas.

In order to prevent the lug lr from being deviated laterally and disengaged from the wheel 0, the arm 71, is guided by means of a guide 1), secured to the tube 5, and a safetyspring g, attached to the end of the cock n, prevents the wheel from moving backwardly.

The gas admitted to the burner is ignited by means of a platina coil 3, inserted at any convenient point into the circuit formed of the wire 1".

The apparatus operates as follows: A current of short duration passing through the circuit, the electromagnet will be energized and influence the armature 0, whereby the lug 7c is moved downwardly, causing the wheel 0 to rotate to an angle of about ninety degrees and open the cook it, while the coil 8 is brought to a red heat to ignite the gas flowing out from the burner. The circuit being broken again, the armature c is again moved upwardly by the action of the spring Z, whereby the lug 7c is also raised without rotating said ratchet-wheel. When it is desired to extinguish the burner, a second current is passed through the circuit, whereby the ratchet-wheel, and consequently the cook a, is again caused to rotate to about an angle of ni11ety,degrees in the same direction. Thus said. cock will be closed and the burner extinguished.

It is manifest that whatever be the number of burners inserted into the circuit the same will be simultaneously ignited and extinguished in the manner described, the cooks of said burners being of the usual construction. (Shown in Fig. 5.) However, when it is desired to extinguish only a number of burners at one time and other burners at another time the latter are to be provided with cooks the plugs of which have a passage the diameter of which is double of the diameter of the ordinary cocks, as shown in Fig. 6. Thus when a firstextinguishing current passes through the circuit the burners havin ordinary cocks will be extinguished, while the others remain ignited until at a given moment a second current passes through the circuit,

causing the cooks to rotate to a second quarter of a circle in the same direction as previously, whereby the same will be closed.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be nerformed, we declare what we claim is- 1. In an apparatus of the class set forth, the combination with a gas-burner, and a tube extending from the lower end thereof and capable of being connected with the canalization, of a stationary electromagnet, arranged around said tube, a disk-like armature, hinged to the frame of the magnet, a downwardly-extending arm secured to the armature, a spring engaging with said arm for normally holding said armature in its raised position, an upwardly-extending arm of yielding material carried by said armature, a pawl arranged on the free end of said arm, a ratchet-wheel on the outer end of the plug of the burner-cock, capable of being engaged and rotated in one direction by said pawl when the same is moved downwardly, and means for preventing said ratchet-wheel from being rotated in opposite direction, substantially as set forth.

2. The combination with two sets of gasburners, one having cocks of ordinary size, while the cooks of the other have passages of double width, tubular extensions on the lower end of each cock, of a stationary electromagnet arranged around each tube, a disk-like armature for each electromagnet, a central hole in the armature for allowing the same of being freely moved, a bin e connecting the armature to the magnetrame, means for normally holding said armature in its raised position, an upwardly-extending arm carried by the armature, a pawl arranged on the free end of said arm, a ratchet-wheel on the outer ends of the plugs of the burner-cocks, capable of being engaged and rotated in one direction by said pawl when the same is moved downwardly, and means for preventing said ratchet-wheel from being rotated in opposite direction, substantially as set forth.

In testimony whereof we have-signed our names to this specification in the presence of two subscribing witnesses.

ORESTE OANDI. CESAR CANDI.

Witnesses ANDREA GERARDEUGHI RroU, A. FERRARI. 

